CN205764060U - A kind of auxiliary bore hole device ensureing perpendicularity - Google Patents

Abstract

The utility model discloses an auxiliary drilling device for ensuring verticality, which comprises a base and a clamping device; the top surface of the base is provided with a drill hole penetrating the base, and the drill hole is perpendicular to the The bottom surface of the base; the clamping device is arranged on one side of the base, and is used for clamping the base and the workpiece. The drilling device of the utility model utilizes that the bottom surface of the base is attached to the surface of the workpiece, the drill sleeve is perpendicular to the bottom surface of the base, the drill bit can directly process holes on the surface of the workpiece along the drill sleeve, and the verticality of the processed hole position is It meets the production requirements and greatly reduces the scrap rate.

Description

An Auxiliary Drilling Device Guaranteeing Verticality

technical field

The utility model relates to an auxiliary drilling device, in particular to an auxiliary drilling device which can ensure the verticality of processed holes.

Background technique

In the field of mechanical manufacturing, it is often necessary to drill some molded parts, and it is generally required that the hole position is perpendicular to the surface of the molded part. In the rail transit vehicle manufacturing industry, it is necessary to process some workpieces with large dimensions, complex shapes and high precision requirements for hole positions. And because this type of workpiece is generally assembled by welding of multiple parts, the size is relatively large, and it cannot be placed on a drilling machine for drilling. In the prior art, technicians generally process the surface of the workpiece with a hand-held electric drill. There is no tooling that can ensure the verticality of the hole position during processing, resulting in a large error in the perpendicularity between the processed hole position and the workpiece surface, which is likely to cause the workpiece to be scrapped.

Utility model content

In order to overcome the shortcomings and deficiencies of the prior art, an auxiliary drilling device that can ensure the verticality of the drilling and can be quickly positioned is provided to realize the large parts of different positions and different structures (plane or arc) of rail transit vehicles. Advanced manual drilling can achieve the effect of improving drilling quality, increasing production efficiency and greatly reducing costs. The utility model discloses an auxiliary drilling device for ensuring verticality, which comprises a base and a clamping device; the top surface of the base is provided with a drill hole penetrating the base, and the drill hole is perpendicular to the The bottom surface of the base; the clamping device is arranged on one side of the base, and is used for clamping the base and the workpiece. The electric drill can be inserted along the drill hole, and directly vertically touch the surface of the workpiece to be processed to ensure that the processed hole meets the verticality requirements.

Further, it also includes a drill sleeve and a positioning device; the base includes a top surface provided with a mounting hole and a bottom surface that can cooperate with the workpiece surface; the drill sleeve is arranged in the installation hole, and the drill hole is arranged in the In the drill sleeve, the drill hole runs through the drill sleeve; the axis of the drill hole is perpendicular to the bottom surface of the base; the positioning device is arranged at the bottom of the base.

Further, the top end of the drill sleeve is an outwardly protruding ring, and the radius of the ring is larger than the radius of the installation hole; the lower end of the drill sleeve is inserted into the installation hole and is tightly connected to the installation hole. paste. This setting enables the drill sleeve to be firmly fixed in the mounting hole, avoiding shaking from side to side during processing.

Further, it also includes a positioning screw, the side wall of the drill sleeve is provided with a positioning groove, and the side wall of the base is provided with a positioning hole, and the positioning screw is screwed into the positioning hole and touches on the drill. on the positioning slot of the sleeve. The set screw can fix the drill sleeve to prevent the drill sleeve from shaking up and down.

Further, the positioning device includes a positioning slider and a pinball screw; the positioning slider is provided with a screw hole, one side of the positioning slider is provided with a boss, and the pinball screw is arranged in the screw hole Among them, the ball of the pinball screw protrudes from the bottom of the positioning slider; the bottom of the base is provided with a chip removal groove; the positioning slider is inserted into the chip removal groove, and the protrusion The top of the table touches the side wall of the base; the axis of the screw hole coincides with the axis of the drilled hole. Using the auxiliary function of the positioning slider, the technician can determine the relative position of the drilling device and the workpiece before processing, so as to ensure the accuracy of the hole processing.

Further, it also includes a clamping device, the clamping device includes a connecting rod, a fixing plate and a clamping handle; the connecting rod includes a long rod and a short rod, and one end of the long rod and the short rod are connected to form an L-shape , the other end of the short rod is fixed on the base, the fixing plate is arranged on the outside of the long rod, the fixing plate is provided with a threaded through hole, and the outside of the clamping handle is provided with threads, so The clamping handle is screwed into the threaded through hole of the fixing plate. Such an arrangement enables the drilling device to be relatively fixed relatively to the workpiece during processing, so as to prevent the vibration during processing from affecting the drilling effect.

The drilling device of the utility model utilizes that the bottom surface of the base is attached to the surface of the workpiece, the drill sleeve is perpendicular to the bottom surface of the base, the drill bit can directly process holes on the surface of the workpiece along the drill sleeve, and the verticality of the processed hole position is It meets the production requirements and greatly reduces the scrap rate.

For better understanding and implementation, the utility model will be described in detail below in conjunction with the accompanying drawings.

Description of drawings

Fig. 1 is an exploded view of the utility model.

Fig. 2 is a top view of the utility model in use.

detailed description

Please refer to Fig. 1 and Fig. 2, a kind of auxiliary drilling device that guarantees verticality, comprises base 10 and clamping device, and the top surface of described base 10 is provided with the drilling hole 21 that runs through described base 10, so The bore hole 21 is perpendicular to the bottom surface of the base 10; the clamping device is arranged on one side of the base 10, and is used for clamping the base 10 and the workpiece. It also includes a drill sleeve 20 and a positioning device; the base 10 includes a top surface provided with a mounting hole 11 and a bottom surface that can cooperate with a workpiece surface; the drill sleeve 20 is arranged in the installation hole 11, and the drill sleeve 20 is provided with a drill hole 21 , the drill hole 21 runs through the drill sleeve 20 ; the axis of the drill hole 21 is perpendicular to the bottom surface of the base 10 ; the positioning device is arranged at the bottom of the base 10 .

The top end of the drill sleeve 20 is an outwardly protruding ring whose radius is larger than that of the mounting hole 11; the lower end of the drill sleeve 20 is inserted into the mounting hole 11 and connected to the mounting hole 11 clinging. Also includes a positioning screw 31, the side wall of the drill sleeve 20 is provided with a positioning groove 32, the side wall of the base 10 is provided with a positioning hole 33, the positioning screw 31 is screwed into the positioning hole 33 and touches On the positioning groove 32 of the drill sleeve 20 .

Described positioning device comprises positioning slide block 40 and pinball screw 41; Described positioning slide block 40 is provided with screw hole 42, and one side of described positioning slide block 40 is provided with boss 43, and described pinball screw 41 is arranged on In the screw hole 42, the ball of the pinball screw 41 protrudes from the bottom of the positioning slider 40; the bottom of the base 10 is provided with a chip removal groove 12; the positioning slider 40 is inserted into In the chip flute 12 , the boss 43 abuts against the side wall of the base 10 ; the axis of the screw hole 42 coincides with the axis of the drill hole 21 .

Also comprise clamping device, described clamping device comprises connecting rod, fixing plate 53 and clamping handle 54; Described connecting rod comprises long rod 51 and short rod 52, and one end of described long rod 51 and short rod 52 joins Form an L shape, the other end of the short rod 52 is fixed on the base 10, the fixed plate 53 is arranged on the outside of the long rod 51, the fixed plate 53 is provided with a threaded through hole, the clip Threads are provided on the outside of the tightening handle 54 , and the clamping handle 54 is screwed into the threaded through hole of the fixing plate 53 .

In this embodiment, the mounting hole 11 of the drill bushing 20 of the base 10 is not at the central axis of the base 10, but is arranged at a position close to the edge of the base 10, so that the drilling device is at a distance from the workpiece at the position of the hole to be processed. Applicable even when the edges are small. Both the upper surface and the bottom surface of the base 10 are provided with diamond-shaped grids to increase the friction between the workpiece and the clamping tool, so that the clamping is more stable without applying a large pressing force to prevent the workpiece from being pinched. There is a through chip removal groove 12 in the middle of the bottom surface of the base 10, which facilitates the discharge of drill chips from both sides during drilling without being discharged through the drill sleeve 20, thereby increasing the service life of the drill sleeve 20; the chip removal groove 12 is also used for positioning Guidance of slider 40. Before using the rapid positioning auxiliary drilling device of the utility model that can guarantee verticality, it is necessary to draw a line at the center of the workpiece drilling, punch a spot with a sample, and drill a small hole about 1 to 2 mm deep at the center with a hand electric drill.

This drilling device is used in conjunction with an electric drill. The technician first pre-drills a hole at the position of the workpiece to be drilled, so that a small hole is left at this position, and then positions the drilling device at this position and clamps it. Then the drill bit of the electric drill is inserted along the drill hole 21 of the drill sleeve 20 until the drill bit touches the small hole, and then drills.

The bottom surface of the base 10 fits the surface of the workpiece to be processed. In this embodiment, the bottom surface of the base 10 is a plane. In other embodiments, the bottom surface of the base 10 can be processed into an arc surface according to actual needs, etc. shape. And the cooperation between the mounting hole 11 of the base 10 and the drill sleeve 20 makes the bore 21 perpendicular to the bottom surface of the base 10, so that the drill bit can be perpendicular to the surface of the workpiece when falling along the drilled bore 21. The positioning device located at the bottom of the base 10 is mainly used to adjust the position of the drilled hole 21 aligned with the surface of the workpiece, so that the axis of the drilled hole 21 corresponds to the small hole left during pre-drilling, which is convenient for processing.

In this embodiment, the radius of the ring at the top of the drill sleeve 20 is larger than the radius of the installation hole 11, and the lower end of the drill sleeve 20 is inserted into the installation hole 11 and fits closely with the installation hole 11, so the upper end of the drill sleeve 20 stuck in the surface of the mounting hole 11. The size of the bore hole 21 of the drill sleeve 20 can be changed according to different processing needs, and multiple drill sleeves 20 can also be made. The base 10 can be applied to different drill sleeves 20, thereby improving production efficiency and reducing costs.

The side wall of the base 10 is provided with a positioning hole 33 for the positioning screw 31 to be screwed in, and the positioning screw 31 touches the positioning groove 32 on the side wall of the drill sleeve 20, thereby preventing the drill sleeve 20 from being processed. Shake up and down from time to time.

In this embodiment, the positioning slider 40 of the positioning device is inserted from the chip removal groove 12 of the base 10, and the boss 43 provided on one side of the positioning slider 40 mainly realizes the locking function. After the side wall of the seat 10, the axis of the drilled hole 21 coincides with the axis of the screw hole 42, and the technician can move the positioning slider 40 and the base 10 so that the pinball of the pinball screw 41 is pushed into the pre-drilled hole , so as to generate a certain movement resistance, and at this time, the base 10 and the workpiece are clamped. Then pull out the positioning slide block 40 and just can start processing. By adjusting the tightness of the pinball screw 41 , the translational resistance of the positioning slider 40 can be adjusted during the positioning operation.

In this embodiment, a clamping device is installed on the drilling device. In other embodiments, an external clamping tool can also be used, as long as the drilling device is clamped and fixed to the workpiece.

The clamping device in this embodiment is connected and fixed with the base 10 by means of a short rod 52, and the clamping handle 54 can move axially in the threaded through hole of the fixing plate 53 through rotation, thereby shortening the clamping handle 54 and the distance between the base 10. In use, after the base 10 is positioned by the positioning slider 40, the workpiece is located between the base 10 and the clamping handle 54, and then the clamping handle 54 is rotated so that the clamping handle 54 against the workpiece and clamped, thereby fixing the relative position of the base 10 and the workpiece, and then the positioning slider 40 is drawn out. Start machining the hole.

The drilling device of the utility model utilizes that the bottom surface of the base is attached to the surface of the workpiece, the drill sleeve is perpendicular to the bottom surface of the base, the drill bit can directly process holes on the surface of the workpiece along the drill sleeve, and the verticality of the processed hole position is It meets the production requirements and greatly reduces the scrap rate.

The utility model is not limited to the above-mentioned embodiment, if the various modifications or deformations of the utility model do not depart from the spirit and scope of the utility model, if these changes and deformations belong to the claims of the utility model and within the equivalent technical scope, Then the utility model is also intended to include these modifications and variations.

Claims (6)

1. An auxiliary drilling device for ensuring verticality, characterized in that: it includes a base and a clamping device; the top surface of the base is provided with a borehole that runs through the base, and the borehole is perpendicular to the The bottom surface of the base; the clamping device is arranged on one side of the base for clamping the base and the workpiece. 2. The auxiliary drilling device for ensuring verticality according to claim 1, characterized in that: it also includes a drill sleeve and a positioning device; the base includes a top surface provided with a mounting hole and a bottom surface that can cooperate with the workpiece surface The drill sleeve is arranged in the installation hole, the drill hole is arranged in the drill sleeve, and the drill hole runs through the drill sleeve; the axis of the drill hole is perpendicular to the bottom surface of the base; the The positioning device is arranged at the bottom of the base. 3. The auxiliary drilling device for guaranteeing verticality according to claim 2, characterized in that: the top end of the drill sleeve is a circular ring protruding outward, and the radius of the circular ring is larger than the radius of the mounting hole; The lower end of the drill bushing is inserted into the installation hole and closely attached to the installation hole. 4. The auxiliary drilling device for ensuring verticality according to claim 2, characterized in that: it also includes a positioning screw, the side wall of the drill sleeve is provided with a positioning groove, and the side wall of the base is provided with a positioning hole , the positioning screw is screwed into the positioning hole and abuts against the positioning groove of the drill sleeve. 5. The auxiliary drilling device for guaranteeing verticality according to claim 2, characterized in that: said positioning device comprises a positioning slider and a pinball screw; said positioning slider is provided with a screw hole, and said positioning slider One side of the base is provided with a boss, the pinball screw is set in the screw hole, and the pinball of the pinball screw protrudes from the bottom of the positioning slider; the bottom of the base is provided with a chip removal groove; the positioning slider is inserted into the chip removal groove, and the boss touches the side wall of the base; the axis of the screw hole coincides with the axis of the drill hole. 6. The auxiliary drilling device for ensuring verticality according to claim 2, characterized in that: it also includes a clamping device, the clamping device includes a connecting rod, a fixing plate and a clamping handle; the connecting rod includes a long A rod and a short rod, one end of the long rod and the short rod are connected to form an L shape, the other end of the short rod is fixed on the base, the fixing plate is arranged on the outside of the long rod, and the fixed A threaded through hole is provided on the plate, threads are provided on the outside of the clamping handle, and the clamping handle is screwed into the threaded through hole of the fixing plate.